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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3d7415f4 | 2 | |
a8fbdf54 | 3 | #include <errno.h> |
a8fbdf54 | 4 | |
b5efdb8a | 5 | #include "alloc-util.h" |
8c9cfc28 | 6 | #include "btrfs-util.h" |
137c6c6b LP |
7 | #include "chattr-util.h" |
8 | #include "errno-util.h" | |
bb15fafe | 9 | #include "import-util.h" |
a8fbdf54 TA |
10 | #include "log.h" |
11 | #include "macro.h" | |
d8b4d14d | 12 | #include "nulstr-util.h" |
bb15fafe | 13 | #include "path-util.h" |
8b43440b | 14 | #include "string-table.h" |
07630cea | 15 | #include "string-util.h" |
3d7415f4 LP |
16 | |
17 | int import_url_last_component(const char *url, char **ret) { | |
18 | const char *e, *p; | |
19 | char *s; | |
20 | ||
21 | e = strchrnul(url, '?'); | |
22 | ||
23 | while (e > url && e[-1] == '/') | |
24 | e--; | |
25 | ||
26 | p = e; | |
27 | while (p > url && p[-1] != '/') | |
28 | p--; | |
29 | ||
30 | if (e <= p) | |
31 | return -EINVAL; | |
32 | ||
33 | s = strndup(p, e - p); | |
34 | if (!s) | |
35 | return -ENOMEM; | |
36 | ||
37 | *ret = s; | |
38 | return 0; | |
39 | } | |
40 | ||
3d7415f4 LP |
41 | int import_url_change_last_component(const char *url, const char *suffix, char **ret) { |
42 | const char *e; | |
43 | char *s; | |
44 | ||
45 | assert(url); | |
46 | assert(ret); | |
47 | ||
48 | e = strchrnul(url, '?'); | |
49 | ||
50 | while (e > url && e[-1] == '/') | |
51 | e--; | |
52 | ||
53 | while (e > url && e[-1] != '/') | |
54 | e--; | |
55 | ||
56 | if (e <= url) | |
57 | return -EINVAL; | |
58 | ||
59 | s = new(char, (e - url) + strlen(suffix) + 1); | |
60 | if (!s) | |
61 | return -ENOMEM; | |
62 | ||
63 | strcpy(mempcpy(s, url, e - url), suffix); | |
64 | *ret = s; | |
65 | return 0; | |
66 | } | |
67 | ||
68 | static const char* const import_verify_table[_IMPORT_VERIFY_MAX] = { | |
69 | [IMPORT_VERIFY_NO] = "no", | |
7f444afa | 70 | [IMPORT_VERIFY_CHECKSUM] = "checksum", |
3d7415f4 LP |
71 | [IMPORT_VERIFY_SIGNATURE] = "signature", |
72 | }; | |
73 | ||
74 | DEFINE_STRING_TABLE_LOOKUP(import_verify, ImportVerify); | |
75 | ||
76 | int tar_strip_suffixes(const char *name, char **ret) { | |
77 | const char *e; | |
78 | char *s; | |
79 | ||
80 | e = endswith(name, ".tar"); | |
81 | if (!e) | |
82 | e = endswith(name, ".tar.xz"); | |
83 | if (!e) | |
84 | e = endswith(name, ".tar.gz"); | |
85 | if (!e) | |
86 | e = endswith(name, ".tar.bz2"); | |
87 | if (!e) | |
88 | e = endswith(name, ".tgz"); | |
89 | if (!e) | |
90 | e = strchr(name, 0); | |
91 | ||
92 | if (e <= name) | |
93 | return -EINVAL; | |
94 | ||
95 | s = strndup(name, e - name); | |
96 | if (!s) | |
97 | return -ENOMEM; | |
98 | ||
99 | *ret = s; | |
100 | return 0; | |
101 | } | |
102 | ||
103 | int raw_strip_suffixes(const char *p, char **ret) { | |
104 | ||
105 | static const char suffixes[] = | |
106 | ".xz\0" | |
107 | ".gz\0" | |
108 | ".bz2\0" | |
109 | ".raw\0" | |
110 | ".qcow2\0" | |
111 | ".img\0" | |
112 | ".bin\0"; | |
113 | ||
114 | _cleanup_free_ char *q = NULL; | |
115 | ||
116 | q = strdup(p); | |
117 | if (!q) | |
118 | return -ENOMEM; | |
119 | ||
120 | for (;;) { | |
121 | const char *sfx; | |
122 | bool changed = false; | |
123 | ||
124 | NULSTR_FOREACH(sfx, suffixes) { | |
125 | char *e; | |
126 | ||
127 | e = endswith(q, sfx); | |
128 | if (e) { | |
129 | *e = 0; | |
130 | changed = true; | |
131 | } | |
132 | } | |
133 | ||
134 | if (!changed) | |
135 | break; | |
136 | } | |
137 | ||
ae2a15bc | 138 | *ret = TAKE_PTR(q); |
3d7415f4 LP |
139 | |
140 | return 0; | |
141 | } | |
142 | ||
8c9cfc28 LP |
143 | int import_assign_pool_quota_and_warn(const char *path) { |
144 | int r; | |
145 | ||
146 | r = btrfs_subvol_auto_qgroup("/var/lib/machines", 0, true); | |
147 | if (r == -ENOTTY) { | |
148 | log_debug_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines, as directory is not on btrfs or not a subvolume. Ignoring."); | |
149 | return 0; | |
150 | } | |
151 | if (r < 0) | |
152 | return log_error_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines: %m"); | |
153 | if (r > 0) | |
154 | log_info("Set up default quota hierarchy for /var/lib/machines."); | |
155 | ||
156 | r = btrfs_subvol_auto_qgroup(path, 0, true); | |
157 | if (r == -ENOTTY) { | |
158 | log_debug_errno(r, "Failed to set up quota hierarchy for %s, as directory is not on btrfs or not a subvolume. Ignoring.", path); | |
159 | return 0; | |
160 | } | |
161 | if (r < 0) | |
162 | return log_error_errno(r, "Failed to set up default quota hierarchy for %s: %m", path); | |
163 | if (r > 0) | |
b11591af | 164 | log_debug("Set up default quota hierarchy for %s.", path); |
8c9cfc28 LP |
165 | |
166 | return 0; | |
167 | } | |
137c6c6b LP |
168 | |
169 | int import_set_nocow_and_log(int fd, const char *path) { | |
170 | int r; | |
171 | ||
172 | r = chattr_fd(fd, FS_NOCOW_FL, FS_NOCOW_FL, NULL); | |
173 | if (r < 0) | |
174 | return log_full_errno( | |
175 | ERRNO_IS_NOT_SUPPORTED(r) ? LOG_DEBUG : LOG_WARNING, | |
176 | r, "Failed to set file attributes on %s: %m", path); | |
177 | ||
178 | return 0; | |
179 | } |